Auto oil-measuring device



mmh 9. 19 2 x7 A J MARSHALL AUTO OIL MEASURING DEVICE File I` Jan. 15, 1929.

Patented 15, .1Q-39,

UNITED STATES .eArsNT OFFICE.

ANDREW J. MARSHALL, OF HARRISBUEG, ILLINOIS, ASSIGNOR OF ONE-HALF TO GEORGE W. MITCHELL, OF HARRISBURG, ILLINOIS.

AUTO OIL-MEASURING DEVICE.

Application filed March 9,

The object of this invention is to provide an oil vending device which can be adjusted to accurately measure the vended oil in any predetermined units, such as quarts, and to display the measured commodity in plain view of the purchaser.

Another object is so to connect two air tight containers that the oil contents of a full container will be positively discharged therefrom by air under pressure from an empty container, due to displacement of the air in the empty container in the process of filling it, under pressure with oil preparatory to the next discharge, that is to say, the object is to cause the filling of an empty container with oil, to discharge the oil in a container previously iilled, and so on continuously.

I accomplish the above, and other minor objects which will hereinafter appear, by the mechanism illustrated in the accompanying drawing, in which- Fig. 1, is a longitudinal vertical section of my invention on the line 1 1, of Fig. 2, and

Fig. 2, is a cross section approximately on the line 2 2 of Fig. 1.

Like characters of reference indicate like parts in the two views.

My invention is preferably elevated several feet above the pavement to make it conspicuous and easily watched by the customer while he is being served. Preferably it will be at the top of a stand pipe 3, which is hollow to also serve as a supply pipe in filling the measuring` and vending containers. The stand pipe 3 is supported below in any suitable manner, not shown, and its upper end is screwed into a socket in a large depending boss 4, cast on the under side of a base-plate 5.v

Seated on the base-plate 5 are the two cylinders Gand 7, preferably glass, which form the walls of a pair of oil measuring and vending containers, of which the plate 5 f is the bottom. A cap plate 8 rests upon the cylinders. Suitable gaskets 9 are interposed between the glass and metal and an air tight seal is secured by tightening the cylinders between the metal plates by'means of the bolts A cylindrical socket is formed in one side of the boss 4, in which a correspondingly cylindrical valve seat block 11 is seated. Ports a, b, c, and d, start from four equi- 1927. serial No. 173,934.

distant concentric points in the outer side of the block 11. The bottom port a registers with a porteXtension in boss 4, through which it communicates with the interior of stand pipe. The top port Z) is extended and has constant communication with a discharge pipe 12. The side port c registers with an extension in the boss 4, which communicatesl with the interior of cylinder 6, and the side port cl registers with an extension in the boss 4 which communicates with the interior of cylinder -7.

A cylindrical valve block 13 is mounted on a valve stem 14, which passes through the middle of the block 11; also through the boss 4 and terminates with an outside crank 15, by which the valve block 13 is manually rocked. The assembly is preferably made tight by a cover plate 16 which conforms in shape and is bolted to the boss 4. Through this cover plate the continuation of port b is here shown as extending to discharge pipe 12, but this cover plate may be dispensed with in which case the goose neck for pipe 12 will screw into the enlarged port b in block 11.

The valve block 13 has four port-holes on its inner face or that face which is in contact with the block 11 equi-distant from each other and on a concentric circle of the same radius as are holes for ports a, b, c and cl, on block 11, whereby the ports of the two blocks are adapted to be brought into register with each other. The four port-holes in the valve block 13 are connected in pairs by extensions e and f, shown by dotted lines in Fig. 1.

It will now be apparent that when the port holes of block 13 are in register with those of lock 11, as for example, in the manner shown in Fig. 1, the inlet pipe will be in communication with the interior of receptacle 6 and the receptacle 7 will be in communication with the discharge pipe l2. .lt is also apparent that when the valve block 13 is rocked a quarter of a revolution the inlet pipe 3 will be in communication with receptacle 7 and the receptacle 6 will be in communication with discharge pipe 12.

The rocking of the valve-block 13 is accomplished by operating crank 16,-and to stop the crank at positions of register of the ports I provide stop arms 15 suitably placed.

Itis obvious that neither of the receptacles 6 and 7, can be filled While full of air, but instead of providing a vent to the atmosphere I provide ztcoin'm'unicating port 17 through the eap'plate S.

1n each end of the port- 17 is a valve 18? Whioh @loses by. pressure against it of afloat 19. The float is retainedin operative position by a basket 20, but when oilsupplied to the receptacle reaches the float the latter risesand Closes the Valve. Bet'ore that occurs the air Contents ot the receptacle begins tocondense as the empty receptacle is lilled under pressure'with oil", and itI passes through tlieport 17"t`o the `oil-lille'd receptacle at its other end andaots to forcibly ejeotltli'e oil. Consequently, when" the receptacleheing i'ill'edwitli oil4 oit oil contained aliove the topottli-e stainl-V pipe is just equal to tflieflesiredunita A vent conti-olledf by a eocl 23 may lieopened tolet'tlie-an" out-1 et Container 7 at the tir-st filling andf is :then elosed.`

The details of' Construction here shownv may lie Varied5 without depart-ing 'troni' the spirit ofmy invention' and Iv theretored'o lnot desire tovbe lioundpt'o tlie exact' mechanismv illxustratedl and described nor any more than is requiredbytlie" appended claims.

1 claim:

1f. n-aS-liquid? vending machine, tivo'meastiring cylinders7 a eapfplate covering,` both cylinders having a conduit therein forming a communication between the cylinders, and

f having a'oa-tl valve at each-end of the Conduit, a base plate supporting both cylinders havin adependingiboss With a recess oli-one side andla port from each-cylinder to the re- Cess7 a hollow standard'fixed to the boss and terminga supply Conduit discharging into said recess, a Valve seat block lined in the re- Cess having-two ypartslrespectively connecting with the ports to the two cylinders, and a roekalile Valve block havingv ports Cooperating` With ltliose'ot the valve -seat bloek-'toestablisli alternate communication' lietweentlie lsupply pipe and a eorr'espondingone et tlieleylinders by the rocking et tlleyalye.

2. In a liquid vending"machine, two meassuring cylinders, a1 cap` plate Covering' both Cylinders having' a *conduit therein forming a communication between tlie cylindersn 'and having av i'loatf valve ab each-endy of tlieeenduit, a base plate supporting both Cylinders having' a dependinglboss 'with recessen one side andv a' port tiene eaeli cylinder to theV recess, a'liolloW- standard fiXedtot-heboss andE tornnngfa supply conduitE disehargingr intosaidreeess, a Valve seat lilooli? lined intlie recess having-two por-ts respectivelyeonneeting with the ports to the twoy cylinders7 andY a roekalile valvebleek having ports' cooperating'4 Wlth those ofv the Va'lve seat bleek to establish alternate communicationbetween theV ANDREW J: MARSHAEL; 

